import random 
print("""Welcome to the Coin Guessing Game! \nchoose a method to toss the Coin: \n 1. Using random.random() \n 2.Using random.randint() \n""") 
num = int(input("enter 1 or 2: \n")) 
if num == 1: 
    if random.random() >= 0.5: 
        computer_result = "heads" 
    else: computer_result = "tails" 
elif num == 2: 
    if random.randint(0,1) == 0: 
        computer_result = "heads" 
    else: computer_result = "tails" 
    
else: 
    print("Invalid choice. please select either 1 or 2,") 
    exit() 
    
user_num = input("enter your guess(heads or tails):") 
if user_num.lower() == computer_result.lower(): 
    print("congratulations! you win") 
else: 
    print("sorry, you lost!") 
    
print(f"the computer's coin toss result was: {computer_result}")
	اذا دخل المستخدم احرف او رموز بدل الارقام يحصل خطا كيف اصحح ال ايرورر هذا ؟